There are guides to random titles, tools and maps at Rand Roll. There is a list by most recently updated article. And a Guide to Solo Gens. And a list of sci-fi and other genres.
Fantasy Guides
- There is a Generators Guide for Fantasy covering all sorts, such as Taverns and World Building. And a PDFs Guide for Fantasy
- Characters and Groups covers adventurers, companions and parties. Plus a PDF/Books Guide
Guides by Environment
- Cities covers tools and maps for entire cities and filling out the details. Plus a City Maps Guide. Plus a PDF/Books Guide
- Dungeons covers rooms, traps, doors and flavour. Plus a Dungeon Maps Guide. Plus a PDF/Books Guide
- Hinterlands includes farmlands and villages with details for farming, travellers and livestock. And a Hinterlands Maps Guide. Plus a PDF/Books Guide
- Planes and Otherworldly includes realms beyond the one of mortals. Plus Otherworldly Maps Guide. Plus a PDF/Books Guide
- Seas and Pirates covers ships, pirates, sailors, the open sea and places. Also a Sea Maps Guide. Plus a PDF/Books Guide
- Wilderness covers places beyond settled lands. Plus the Wilderness and Hexcrawl Map Guide. Plus a PDF/Books Guide
A Few Guides More
- Plus the DnD Tools Mega-Guide for everything D&D. Plus D&D on DM's Guild and Drive Thru
- Dark Fantasy explores characters, items, creatures, atmosphere and bad things
- Pathfinder 1E shows off tools for Pathfinder 1st Edition with Dungeons, traps, encounters, magic items, treasure, npcs, characters, names and Golarion.